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QRQ4
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Peter Refaat
QRQ4
Expert
Egypt
Egypt
Joined Jan 20, 2026
OverviewRatingPosts
Rating
1595
Problems18
Submissions22
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QRQ4 has completed the contest Blitz Round #22 and scored 650 points5 days ago
QRQ4 solved problem Nasser's GCD Partners (#12480) on first attempt5 days ago
QRQ4 solved problem Nasser's Array Equalizer (#12481) on 5 attempt5 days ago
QRQ4 solved problem Nasser's Concatenation (#12479) on 3 attempt6 days ago
QRQ4 solved problem Nasser's Five (#12478) on first attempt6 days ago
QRQ4 has joined contest Blitz Round #2221 days ago
QRQ4 has completed the contest Blitz Round #21 and scored no score2 months ago
QRQ4 solved problem The Efficient Steps (#12465) on 2 attempt2 months ago
QRQ4 has joined contest Blitz Round #212 months ago
QRQ4 has completed the contest Blitz Round #20 and scored 800 points2 months ago
QRQ4 solved problem Bitwise Party (#12463) on first attempt2 months ago
QRQ4 solved problem Not Very Powerful (#12464) on first attempt2 months ago
QRQ4 solved problem Fe3b0onacci Pairs (#12462) on first attempt2 months ago
QRQ4 solved problem Dream Permutation (#12461) on first attempt2 months ago
QRQ4 solved problem Exciting Arrays (#12460) on first attempt2 months ago
QRQ4 has joined contest Blitz Round #202 months ago
QRQ4 has completed the contest Weekend Practice #23 and scored no score3 months ago
QRQ4 has joined contest Weekend Practice #233 months ago
QRQ4 has joined contest Weekend Practice #223 months ago
QRQ4 solved problem Rufo's massive (#12430) on first attempt3 months ago
QRQ4 solved problem Area (#12429) on 3 attempt3 months ago
QRQ4 has joined contest Blitz Round #183 months ago
QRQ4 solved problem Monkey and Apple-trees (#7488) on 10 attempt4 months ago
QRQ4 solved problem Connectivity (#982) on first attempt4 months ago
QRQ4 solved problem From adjacency matrix to adjacency list (#3981) on first attempt4 months ago